One explanation that Dr Natterson-Horowitz gives for the divide between treatment of humans and animals in contemporary society is that there is a psychological separation that exists between human patients in hospitals which have technology and animals in the wild.
Explanation:
Dr Barbasra Natterson-Horowitz is a professor who is specialized in Medicine, Cardiology and in Human Evolutionary Biology. She wrote a book titled Zoobiquity and she explains that the reason for the divide between how humans and animals are treated is as a result of the psychological distance that exists between human patients in hospitals filled with technology and animals in the wild.
Experimental Research or Observational trial Reasearch ,
Explanation:
Hard to tell because its not really diving much description and theres about 12 types of research procedures , but those are some of the MOST common research procedures it would 9/10 most likely be.